He went in with a sounding plunge; the red cap came off and remained floating on the surface; and as soon as the splash subsided, I could see him and Israel lying side by side, both wavering with the tremulous movement of the water.
There are no more uses of "tremulous" in the book.
Show samples from other sources
She spoke timidly in a tremulous voice.
She tried to sound confident, but her voice was tremulous.